First, if you get this, make sure that you actually have installed the required components (whichever you are missing): …but my real point here, is that it seems that some (at leastRead More…
If you want to set up the Roundcube password plugin on a mail system that is administered with Postfixadmin, you could be in a small trouble, because it’s not supported by default.Read More…
If you upgrade phplist or import an old database, it will most probably show an error message similar or exact to the one in the picture below. The issue is that thereRead More…
Postscreen is a handy feature of Postfix 2.9 and on, if you want to prevent degrading the performance of your server box with frequent external invalid requests. It actually implements a setRead More…
One problem that can comes up with the fantastic Centos Linux distro is that it sticks to the proven but also old packages. I needed some newer features several times. One ofRead More…
DMARC (stands for Domain-based Message Authentication, Reporting & Conformance) is a TXT record implenented in a _dmarc subdomain on your DNS server that after DKIM and SPF are implemented ultimatively advises theRead More…
Implementing Sender Policy Framework (SPF) is another mechanism to authenticate your domain as a legitimate mail sender and that means lowering your SPAM score in antispam mechanisms. It is done on theRead More…
OpenDKIM will give Your mail a signature that will eventually lower the spam score of the mail comming from your domain. This will help signifficantly to exclude these mails from being considered as spamRead More…
During the processing of the emails Amavis-new conducts a series of tests, including so called bad-header checks which usually give a headache to system engineers because of false detections (most commonly aRead More…